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Tuesday, August 4, 2020 | History

2 edition of Drought and cold stress-induced morphometric changes in tree rings of red spruce found in the catalog.

Drought and cold stress-induced morphometric changes in tree rings of red spruce

Richard Jagels

Drought and cold stress-induced morphometric changes in tree rings of red spruce

by Richard Jagels

  • 365 Want to read
  • 38 Currently reading

Published by Maine Agricultural and Forest Experiment Station, University of Maine in Orono, Me .
Written in English

    Subjects:
  • Spruce -- Maine.,
  • Red spruce -- Maine.,
  • Tree-rings.

  • Edition Notes

    StatementRichard Jagels, James Hornbeckand Susan Marden.
    SeriesTechnical bulletin / Maine Agricultural Experiment Station -- 159
    ContributionsHornbeck, James., Marden, Susan., Maine Agricultural and Forest Experiment Station.
    The Physical Object
    Pagination19p. ;
    Number of Pages19
    ID Numbers
    Open LibraryOL20027991M

    Full text of "Progress in Botany [electronic resource]: Structural Botany Physiology Genetics Taxonomy Geobotany/Fortschritte der Botanik Struktur Physiologie Genetik Systematik Geobotanik" See . Schellenbaum, L., Müller, J., Boller, T., Wiemken, A. and Schüepp () Effects of drought on non-mycorrhizal and mycorrhizal maize: changes in the pools of non-structural carbohydrates in the.

    Full text of "Desert Plants Biology & Biotechnology" See other formats. In this book, we try to comply with Haeckel s understanding of plant ecology and to include the breadth of ecology as it was demanded by Haeckel. Adaptation to the environment starts at the molecular and cellular level where environmental conditions are detected and the responses to changes in the environment are accomplished.

    CHANGES IN MOMENT ARM OF THE SEMITENDINOSUS AND KNEE MOMENT POST ACL RECONSTRUCTION (Student Work) Dunlap, Michaela: ECU: Changes in the Structural Properties of the UCL in Collegiate Baseball Pitchers (Student Work) Curran, Christopher James: ECU: Changes in students' attitudes during a course in child development (Student Work. The osprey (Pandion haliaetus) deserves sound conservation measures in the Central Mediterranean area, where this raptor species is present with less than breeding pairs. Two conservation strategies were carried out in recent years. In Corsica.


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Drought and cold stress-induced morphometric changes in tree rings of red spruce by Richard Jagels Download PDF EPUB FB2

Drought and cold stress-induced morphometric changes in tree rings of red spruce. Orono, Me.: Maine Agricultural and Forest Experiment Station, University of Maine, [] (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors / Contributors.

Drought and Cold Stress-Induced Morphometric Changes in Tree Rings of Red Spruce. (winte r stress), 7 (drought), an d 9 (control). Thre e radia l file s o f. Influencia climática sobre la variación radial de caracteres anatómicos de madera en Abies religiosa Madera y Bosques, vol.

6, núm. 1,pp.Instituto de Ecología, A.C. Drought had no effect on the chlorophyll content (P=), but metal contamination resulted in a weak trend of decreasing chlorophyll content (P=).

Discussion. Both drought and metal stress reduced the growth of red maple seedlings, and resulted in almost identical changes in Cited by:   Andrea J.

Maguire and Richard K. Kobe, Drought and shade deplete nonstructural carbohydrate reserves in seedlings of five temperate tree species, Ecology and Evolution, 5, 23, (), ().; Robert E. Pangle, Jean‐Marc Limousin, Jennifer A. Plaut, Enrico A. Yepez, Patrick J.

Hudson, Amanda L. Boutz, Nathan Gehres, William T. Pockman and Nate G. McDowell, Prolonged. Introduction. Drought is a severe limitation of plant growth, development and productivity, particularly in arid and semi-arid regions (Galle et al., []), and the response characters of plants exposed to drought stress have become a crucial environmental research topic in drought-prone germination and early seedling growth are potentially the most critical stages for water Cited by: Drought is a meteorological term and is commonly defined as a period without significant rainfall.

Generally drought stress occurs when the available water in the soil is reduced and atmospheric conditions cause continuous loss of water by transpiration or evaporation. Drought stress tolerance is seen in almost all plants but its extent variesFile Size: KB.

Among the effects of impending climate change, drought will have a profound impact on crop productivity in the future.

Response to drought stress has been studied widely, and the model plant Arabidopsis has guided the studies on crop plants with genome sequence information viz., rice, wheat, maize and sorghum. Since the value of functions of genes, dynamics of pathways and interaction of Cited by:   Models of global climatic change predict that drought frequencies and intensities will increase in many regions during this century, as a direct or indirect result of changes in the atmospheric concentrations of greenhouse gases (IPCC ).Worldwide reporting of episodes of forest decline or even dieback in the last few decades in response to high temperatures and drought (e.g.

Breshears et Cited by: 5. Plants under drought stress showed a series of morphological, physiological, biochemical, and molecular changes that adversely affect plant growth and productivity (Wang et al., ).

Plants under drought conditions decrease net photosynthesis rate and transpiration; these physiological responses are common in zones where the evaporative Cited by: Mild drought did not significantly affect any of the measured stress physiological and biochemical indicators in the two tested apple tree cultivars (Table 1, Table 2).Significant responses of tested stress indicators were observed only when ΔΨ increased above MPa.

In both cultivars moderate drought decreased (comparing to well-watered control plants) g s which caused decrease in Tr, Ci Cited by:   During water stress, stomatal closure occurs as water tension and levels of abscisic acid ([ABA][1]) increase in the leaf, but the interaction between these two drivers of stomatal aperture is poorly understood.

We investigate the dynamics of water potential, [ABA][1], and stomatal conductance during the imposition of water stress on two drought-tolerant conifer species with contrasting Cited by: Acclimation to partial shading or full sunlight determines the performance of container-grown Fraxinus ornus to subsequent drought stress.

a member of the Oleaceae family of increasing interest as an urban tree. Water stress-induced changes in the physiology and biochemistry of shade- and sun-acclimated by: spruce (2 + 1) and red pine (2 + 0) were both of regional o rigin. The red pines were lifted in the third week of April and kept bagged in cool storage until May 9.

The white spruce seedlings had been in cold storage since the end of October of Seedlings were planted manually on May 9 and were spaced at x meters within each plot.

This study was undertaken to identify morphological changes in young seedlings of 5 Iranian almond species (Prunus dulcis, P. eburnea, P. eleagnifolia, P.

haussknechti, and P. scoparia) under polyethylene glycol-induced drought stress. Drought stress caused a significant reduction in plant growth parameters such as fresh and dry weights of plant organs, leaf number, total leaf area, and leaf Cited by: 6.

Drought stress is one of the most important abiotic stress limiting the plant survival and growth in the Mediterranean environment. In this work, two species typically grown in Mediterranean areas with different drought responses were used.

Two shrubs, with slow (Photinia × fraseri Dress ‘Red Robin’) or fast (Eugenia uniflora L. ‘Etna Fire’) adaptation ability to drought, were Cited by:   Plant response mechanisms to heat and drought stresses have been considered in strategies for generating stress tolerant genotypes, but with limited success.

Here, we analyzed the transcriptome and improved tolerance to heat stress and drought of maize plants over-expressing the OsMYB55 gene.

Over-expression of OsMYB55 in maize decreased the negative effects of high. In vivo analysis of J. microcarpa saplings showed that under well-watered and low drought stress conditions (i.e., Ψ stem from 0 to −2 MPa), xylem vessels in the stem were not susceptible to cavitation as all vessels remained water filled within this water potential range (Figures 1a and 2a).Cited by: Friedrichs et al.Lebourgeois et al.

Tree rings are a very sensitive stress indicator since stem growth has a lower priority than e.g. foliage or root growth (Dob - bertinWaring ). Yet, the tree ring formation along the stem is not uniform.

Tree rings that may be missing in lower stem sections often still appear in higher. and recovery of plants after drought was investigated. The analysis of the effect of consecutive stress periods and recovery on changes in leaf reflectance has rarely been performed until now but might gain in importance considering the predicted increased frequency of drought events whereby plants could be exposed to drought re-peatedly (2, 14 Cited by:.

Can changes in root anatomical traits during stress enhance drought & Salinity tolerance? 1. Can changes in root anatomical traits during stress enhance drought & Salinity tolerance? KABEYA Jerry Muamba Department of Crop Physiology, University of Agricultural Sciences, Bangalore, India 2.Toumi I, Gargouri M, Nouairi I, Moschou PN, Bem Salem-Fnayou A, Mliki A, Zarrouk I, Ghorbel A () Water stress induced changes in the leaf lipid composition of four grapevine genotypes with different drought tolerance.

Biol. Plantarum [ Links ] White DA, Turner NC, Galbraith JH () Leaf water relations and.Changes in structure are manifested by modifications of the composition of the various biocoenoses and the related physical and chemical characteristics of the ambient water body; changes in function are reflected in differences in the organic matter production of the system and in the rates of utilization and release of different gases and.